21. He opened his own obstetrical practice, which became the largest in London. 22. Right now, sonographers need not have any official credentials to perform obstetrical ultrasound. 23. Housing the new Obstetrical Department, the wing doubled the capacity of the hospital. 24. ;Obstetrical Hooks : A common instrument used regularly by Roman and Greek doctors. 25. He would remain as director of the obstetrical clinic in Berlin until his death. 26. He also made improvements to the obstetrical forceps. 27. When the Obstetrical Society was founded in 1859 he was elected its first president. 28. Other potential jurors included an obstetrical nurse who is a native of Kellogg, Idaho. 29. In 1905, the hospital opened dermatitis wards, female wards, and obstetrical wards. 30. All obstetrical trainees must be trained to manage the complications of abortion, the council said.